Sole-laying machine



May 27, 1924.

L. A. CASGRAI N SOLE LAYING MACHINE Filed June 11. 1920' 4 Sheets-Shae t1 May 27, 1924. 1,495,163

L. A. CASGRAIN SOLE LAYING MACHINE Filed June 11, 1920 4 Sheets Sheet 2Fig. 5 7 VE/V 747/3 7 f- ,FigfL W 0 m \i 3:. n 9 W m M O 5 M 1 W. W W ZW 0 a w 0/ WW 1 fl M 9 fi Z 5 vi 7 V n W fl w w 7 a wW m J 7 5 fl 1 1 59 5 9 K 3 May 27 1924.

Y L. A. CASGRAIN so LE LAYING MACHINE Filed June 11 1920 4 Sheets-Sheet5 5 WM w May 27 1924.-

v 1,495,163 L. A. CASGRAIN SOLE LAYING MACHINE Filed June ll 1920 4Sheets-Sheet 4 WVEA/ 717R.

Patented May 27, 1924.

name stares.

PATENT caries.

LOUIS A. CASGRAIN, 0F BEVERLY, MASSACHUSETTS, AS SIGNOR T0 UNITED SHOEMACHINERY CORLPORATIO'N, 0F PATERSON, NEW JERSEY, A CORPORATION OF NEWJERSEY.

SOLE-LAYING -MACHINE.

Application filed June 11, 1920. Serial No. 388,163.

To aZZ whom it may concern:

Be it known that I, LOUIS Al CASGRAIN, a citizen of the United States,residingat Beverly, in the county of Essex and State of Massachusetts,have invented certain Improvements in Sole-Laying Machines, of which thefollowing description, in connection with the accompanying drawings, isa specification, like reference characters on the drawings indicatinglike parts in the several figures.

This invention relates to the manufacture of footwear and is hereinillustrated as em-. bodied in a machine for laying rubber soles onshoes.

The illustrative machine is of that type in which fluid means areprovided for operating both the jackor support for the lasted shoe andthe sole laying pad or presser. Hitherto it has been customary to forcefluid into pressure chambers connected With the jack and presser tooperate tliese members and then, when the sole laying operation wascomplete, to permit the fluid to escape so as to relieve the pressure.One manner of accomplishing this has been to let in water from apressure main and then to permit it to escap to a drain. This procedure,besides being Wasteful of the water used, is unsatisfactory because thedegree of pressure in Water mains varies with different mains and withthe height in any particular factory of the floor upon which the solelaying machine is located. In order to obviate these disadvantages thepresent machine is provided with a self contained liquid system whichuses the liquid over and over again. Such a system not only saves liquidwhich would formerly have been wasted and ensures a more uniformpressure, but by providing positively operated means for moving theliquid to and from the points at which pressure is desired, makes theoperation of the machine more rapid since the delay which formerlyoccurred during the drawing on of the liquid is obviated.

Other novel features comprise improved means for locating the sole withrespect to the lasted shoe, an improved valve mechanism for controllingthe flow of liquid, and an improved construction of the jack whereby thelasted shoe may be held firmly without liability of being disfigured.

These and other features of the invention, including certain details ofconstruction and combinatlons of parts, will be described as embodied inan illustrative machine and pointed out in the appended claims.Referrlng now to the accompanying drawlngsa Fig. 1 is a perspective Viewof a complete machine embodying the present improvements;

Fig. 2 is a sectional front elevation; 1

Fig. 3 is a detail sectional view of one of' the jack post adjustableconnections;

. Fig. 4: is a detail broken out perspective view of a castingmemberwhich includes the valve chambers i Fig. 5 is a detail sectional View ofthe device for locking the sole-locating plate in operative position;

Fig. 6 is a sectional elevation illustrating the valves and connectionsfor controlling the hydraulic mechanism;

Fig. 7 is a section on line 7-7 of Fig. 6;

Figs. 8, 9, 10 and 11 are transverse sectional views through thepressure box, illustrating successive steps in the operation of themachine;

Fig. 12 is a detail plan view of one end of the sole locating plate,illustrating also one form of heel gage;

Fig. 13 is a perspective view of another form of heel gage;

Fig. 14 is a perspective View illustrating the means for locking theheel gage in adj usted position Fig. 15 1s a section on line 15-15 ofFig. 7 looking in the direction of the arrows.

Before entering upon a detailed descripder pressure to flow first to ajack, the toepost 23 of which is indicated in Fig. 10, the

water serving to depress the jack and with it the shoe as indicated inFig. 10. The passage through which water flows to the ack isthen closedwhile the water is under consid'erable pressure, thus locking thejackand shoe in the position shown. Water is next caused to flow to the pador pressure box to distend the pad or diaphragm 17 and cause it toassume a position such as that shown in Fig. 11 to press thebody of thesole against the bottom of. the shoe and te .tive machine, depression ofa treadle to throw in a suitable clutch causes firstapplication ofpressure to the jack, then application of pressure to the pad ordiaphragm, and finally release of the pressure on the diaphragm, therelease of the pressure on the jack being accomplished'manually.

A suitable frame for the machine is illus- I tratedat 27 in Fig. 1, saidframe having a shelf or ledge portion 29 to support the liquid containeror pad box 25. To provide for securing the box 25 in proper operativeposition and yet permit it to be" removed, devices such as illustratedin Figs. 1 and 2 may be employed, each of said devices comprising a lug31 of the box which is connected to a lug 33 of the frame by a screw.

Secured to the top of the box 25 is the sole receiving pad 17 ofresilient elastic material such as rubber, which may be reinforced ifdesired, the marginal edges of said pad being clamped between the flangeof the box and arim 34 corresponding in outline with the outline of theflange, the clamping beingefi'ecte'd by any suitable means such asbolts, as indicated in Fig. 1.

Portions of the clamping rim 34 are formed (Figs 1 and 8 to 11inclusive) to present parallel guide lugs 35 for the edges Of a curvedsole-locatingplate 37 said plate having two sole-shaped openings 39, onefor a right sole and the other for a left sole. Adjustably 'mounted onthe plate 37 and preferably slightly overlapping each opening 39 arelast guiding or shoe guiding lugs 41, one of said lugs being at the toeportion of each opening and two along one side of said opening. Theplate-37 is formed with two edge recesses 43, one of which is shown inFig. 1 (see also Fig. 5), said recesses being properly located so thateither one of them will co-act with a spring actuated locking bolt tohold the plate 37 firmly in pro or longitudinal position with one or theot 1er of the two openings 39 in accurate location above the flexiblepad 17. The bolt 45 (Fig. 5) for locking the sole. locating plate 37 inproper longitudinal position is mounted in a lug 47 formed on one of theflanges 34 and is pressed toward locking position by a spring 49, alever 51 being provided for withdrawing the bolt and holding itwithdrawn when desired. Since the plate 37 is. slidable in the directionof its length and easily removable, one of such plates can be changedfor another according to the size of shoe and sole to be operated upon.It is curved in order to conform approximately to the longitudinal curveof a shoe bottom. By having a number of the plates 37 with differentsizes or shapes of sole openings 39 cut for rights and lefts, there willbe no possibility of mismating the work. It is desirable to explain herethat it is customary in the manufacture of rubber sole footwear tofinish a lot containing an equal number of rights and lefts. The plate37 that is being used for a certain lot can either be shifted alongalternately from position for rights and lefts, or it can be left in oneposition until all the rights are finished and then shifted to positionfor finishing all'of the lefts in that particular lot.

Since the sole laying pressure is obtained by varying the volume of amobile inelastic substance such as Water in the box 25 so that the pad17 Varies as to its height relatively to the plate 37, it is desirableto render it certain that there shall be no liability of so placing asole through an opening 39 that an edge portion of such sole could, whenlaying pressure is applied, get pinchedbetween the pad and the plate. Inother words, itis desirable to render it certain that no portion of asole when being placed in an opening 39 can he slipped under any portionof the plate 37. To effect this, I provide means for normally holdingthe pad 17 close against the under surface of plate 37, as bestillustrated in Figs. 2, 8 and 9. For this purpose I provide a padsupporting plate 21 which has approximately the same longitudinalcurvature as the plate 37, said plate 21 being mounted on springs 55inside of the box 25, and preferably having apertures so that verticalmovements of the plate shall not be interfered withby reason of thewater or equivalent substance in the box. The heel portion of the platehas an opening to permit it to pass to a position below the plane of thetop of a block .57 secured in the box in such location as to limitdownward movement of the heel of the sole and last. The springs 55normally tend to press the plate 21 upwardly far enough to render itcertain that the pad or diaphragm 17 will be brought close up againstthe under surface of the marginal portion of the sole locating plate 37around the opening 39 as soon as the sole laying operation has beencompleted and the last and shoe removed from 'the machine. f

In order to cause the lasted shoe to be pushed down, into and held inthe position shown in Fig. 2 preparatory to letting more water into thepad box 25, the following construction is provided. The upper portion ofthe frame 27 is divided and formed with two downwardly extending arms 59K 70 of the frame arms 59.

(Figs. 1 and 2), each formed with a slot 70, the lower portion of whichis vertical, while the upper portion extends rearwardly at an angle tothe lower portion. Extending across the divided upper portion of theframe is a pin 63, secured firmly in place by binding screws 65. Mountedto turn on the in is the hub of a casting the lower portion of which isformed as a hollow arm 67 the upper portion of the casting being formedas a pipe 69, said pipe communicating with the space in the hollow arm67 (Fig. 2). Fitted to slide vertically on the hollow arm 67 is acylindrical member 71, a suitable packing ring being provided to preventescape of liquid, these two members 67 and 71 forming together anextensible arm. In order to cause this extensible arm 67, 71 to swing onthe pin 63 as it elongates, the member 71 is provided with rolls 73which travel the slots l/Vhen liquid is forced into and withdrawn fromthe extensible arm 67, 71 by the means hereinafter described, this arm67, 71 is first elongated and then shortened. The first movement ofelongation causes the rolls 73 to ride down the inclined portions of theslots of the frame arms 59, so as to swing the extensible arm from thenormal or idle position in Fig. 1 out to a vertical position so that thewhole r jack mechanism including the jack posts,

presently to be described, will be brought over the last, and furthermovement will then lower said posts and depress the last to the positionshown in Fig. 2. \Vhen hydraulic pressure within the extensible swingingarm 67, 71 is released, the arm is shortened and returns to the Fig. 1position under the influence of a spring 75 (Fig. 2). A plug 77 may beemployed to provide for drainage when desired.

As so far described, the construction and operation of the machine aresubstantially the same as in the machine of my prior application Ser.No. 287,516.

The lower end ofthe member 71 is formed or provided with a horizontal,laterally extended web 7 9 adj ustably carrying a toe post and a heelpost which serve to support'the' work against the sole laying pressureof pad 21. Each of the post stems 81, 83 is preferably so connected tothe member 71 as to be adjustable to a variable distance from the centerof thrust of the member 71. In the embodiment of the inventionillustrated herein this adjustability is rovided for by forming thelower face of t e web 79 with side ribs so formed as to present aguideway 85. Slidably mounted in the guideway are two hollow brackets 87split at their upper ends (Figs. 2 and 3) and formed to fit snugly theguideway. Each bracket 87 is provided with an internal lug 89 againstwhich a set screw 91 is adapted to be forced with such pressure as toexpand the upper end of the bracket to bind it in the guideway.

The externally threaded stems 81, 83.0f the toe and heel posts fitinternally threaded portions in the lower ends of the brackets 87. Eachthreaded portion is vertically grooved as at 93, and a spring-pressedball 95 (F ig. 3) is adapted to be held in engagement with one oranother of the grooves 93. Raising or lowering of either the heel or toepost is effected by rotating it, the locking ball-95 yielding to permitsuch rotation and then automatically seating itself in one of thegrooves 93.

The rear jack post 83 has swivelled on its lower end a metal contactmember 97. In order to provide for engaging the toe portion of thelasted shoe Without injury to the vamp, as well as to ensure that thetoe portion shall be properly engaged, an improved water-filled toe pad99 is provided. This toe pad, which may be made of rubber and havecellular walls, is hollow so as to contain a fluid such as .water. Anopening in its upper end receives a nipple 101 having a passageway 103therethrough. The stem of this nipple is externally threaded to receivean internally threaded nut 105, a washer 107 of the shape shown beinglocated between the lower end of the nut and the toe pad 99 so that byscrewing the nut down on the nipple the toe pad may-be held firmly. Thenut is elongated into a sort of sleeve which is threaded internally toreceive the lower threaded end of the stem 81, and is threadedexternally to receive a cap nut 109, packing 110 being inserted insidethe cap nut to ensure a tight joint. The stem 81 is provided with ahexagonal portion 111 to receive a wrench by which the stem 81 mayreadily be turned to raise and lower it or by which the stem may be heldstationary while the ca nut 109 is being tightened or loosened. t willbe understood that by unscrewing the cap nut 109, the nut 105 togetherwith the arts held at its lower end may be removed or filling with wateror for any other purpose.

As has been described, the sole locating plate 37, when adjustedlengthwise, slides over the upper face of the pad 17 To prevent wear ofthe marginal portion of the pad resulting from sliding movements of theplate 37, I interpose a thin plate 113 between the pad and the solelocating plate as shown in Figs. 8 to 11 inclusive. As shown in Fig.2,the box 25 is formed near each end with a small hole normally closed byscrew plugs 115. These are to enable the box to be filled completelywith liquid so as to avoid the presence of air in the box. If at anytime the operation of the pa d appears to be &

is loosened. A thin plate 117 of spring ineffective because of thepresence of air below the pad, one or both of the screws 115 will beloosened until water begins to flow out, and then closed. In practiceany suitable check valve structure may be employed to prevent inflow ofair when a screw plug metal mounted on the plate 21 above the largeopening therein is loosely connected with said plate as by pins one ofwhich is shown .at 119 passing loosely through holes in plate 21, theobject of the loosely connected plate 117 being to cover the largeopening 1n pad suporting plate 21 and properly to support that portionof the pad 17 which is above said opening and the block 57, when the pador diaphragm 17 is held up in normal position by the plate 21.

To enable a sole locating plate 37 to be employed for a considerablerange of sizes and shapes of soles, I employ an adjustable gage one formof which is illustrated in Figs. 1 and 12 and another form in Fig. 13.Referring first to Figs. 1 and 12 the gage comprises a bifurcated member132- the shank 133 of which, having notches 134, is slidably mounted ina. block or housing 135 secured to the plate 37. A spring locking device136 having a tooth 137 adapted to engage any one of the notches 134 issuitably secured to the block 135 as by a screw 138. One end of thespring projects to form a tip which may be lifted by the finger of theoperator to disengage the tooth 137 from a notch 135 to permit the gageto be adjusted in the direction of the length of its shank and relockedin adjusted position. As illustrated in Fig. 13, the bifurcated end of adifferent form of gage 142 may be curved instead of somewhat angular asin the other figures, and provided with a wiper strip 140 of rubberorequivalent. The reason for providing the gage 142 with a resilient stripsuch as indicated at 140 in Fig. 13 is to facilitate the locating ofcertain kinds of soles such as those which are thickened by the additionthereto of an extra layer to provide a heel tap and to aid in layingthem. In a sole of the kind referred to theheel tap is of considerablyless area than is the heel end of the sole sothat the margin of the heelend of the sole oy'crhangs the heel tap to a considerable extent. Whensuch a sole is placed on the pad or diaphragm 17, the heel end of thesole is held raised above the surface of the diaphragm by the heel pad,and, being thin, does not offer a sufiiciently stiff edge for solelocating. purposes. The gage shown in Fig. 13 is particularly useful inlocating a sole of this sort and in aiding in the laying of it. Thecurved edge of the wiper 140 is adapted to engage the firm rear edge ofthe heel tap and to underlie the thin margin of the sole so that whenthe shoe and sole are moved down from the position shown in Fig. 8 tothat shown in Fig. 9, the thin margin of the sole is wiped up evenly.

It will be seen by referring to Figs. 1 and 12 that the last guidinglugs 41 are arranged to engage the lasted shoe at the toe end and at twopoints along one side .and that consequently the longitudinal positionof the lasted shoe, whatever its size, is determined by the forward lug41, and its lateral position by the two lateral lugs 41; In other words,if the bottom of' the lasted shoe is smaller than the opening 39, thetoe end and one side of the shoe will always be located near one end andnear one side of the opening. The purpose of making the gage, whether itbe the gage 132 or the gage 142, adjustable in the oblique directionbest shown in Fig. 12 is to crowd the toe end of the sole against theforward edge of the hole 39 and one side of the sole against that edgeof the hole over which the side lugs 41 project. With this constructiona sole somewhat smaller than the hole 39 may be properly placedtoreceive its lasted shoe and thereby the number of sole locating plates37 necessary to be provided with each machine materially reduced.

As has been explained, water under pressure is supplied first to thejack to engage and depress the lasted shoe, and then to the pad orpressure box 25 to force the diaphragm 17 up about the lower portion ofthe shoe. Water is supplied to the pad box through the pipe 121 and tothe jack throughthe pipe 123, the latter pipe having a flaring upperend, as shown in Fig. 2, which is connected with the pipe 69 by aproperly shaped nut 125 and spring 127, this connection being providedto 'permit the turning of the pipe 69, together with the members of thejack about the pin 63 as has been described above.

lhe machine is provided with a self contained water system herein shownas including a reservoir 145 which is fastened by bolts to the top of acylinder 147 the bottom 149 forming "the top of the cylinder. Located inthe cylinderis a piston 151 which may be caused at any time to make acomplete reciprocation and then come to rest in the position shown inFig. 6, this reciprocation serving first to force water to the jack andpad box and then to facilitate its withdrawal. The flow of the water iscontrolled by three valves located in a chambered casting which isintegral with the reservoir 145. In order to promote clearness, thesevalves will be referred to as the jack valve, the reservoir valve andthe pad box valve. Referring more particularly to Fig. 6, the jack valve153 is located at the bottom of a chamber 155 which communi cates at itsupper end with the pipe 123 leading to the jack; and beneath the valveis a port 157 which communicates with the cylinder 147. This valve isnormally held down in closed position by a Spring 159; but, when thepiston is moved upwardly, the valve is unseated and permits water to beforced up into the pipe 123 to actuate the jack in themanner which hasbeen described above. The pad box valve 161 has a seat in the bottomof'a chamber 163 which is directly connected with the pipe 121 leadingto the pad box and is acted upon at all times by a spring 165, thisspring being considerably stronger than the spring 159 which acts uponthe-jack valve. Below the pad box valve 161 is a port 167 which, likethe port 157 of the jack valve, communicates with the cylinder 147. Atabout the time the piston starts its upward movement, the pad box valve161 is closed and does not open until the pressure in the pipe 123leading to the jack rises to a degree sufiicient to overcome the forceof the spring 165. The pad box valve 161 thus acts as a sort of reliefvalve for the jack, the strength of the spring 165 determining thedegree of pressure which will be exerted upon the lasted shoe. Themoment Water ceases to flow through the pipe 128, the jack valve 153 isclosed by its spring 159. Turning now to the reservoir valve 169, thisvalve has a seat at the bottom of a chamber 171 which communicates by aport 17 3 with the reservoir 145, said reservoir being open toatmospheric pressure and having a loosely pivoted cover 175. A spring177 of greater strength than that of the spring 161 of the pad box valveacts at all times to tend to close the reservoir valve 169. During thefirst part of the upward movement of the piston, this reservoir valve169 is held open, but at or immediately after the closing of the jackvalve 153, this valve169 is permitted to close, and. the pad box valve161 is opened mechanically and held open. lVater then flows through thepipe 121 to the pad box, and forces the pad or diaphragm 17 up aroundthe lower portion of the shoe as shown in Fig. 11. Pressure now rises inthe pipe 121 and chamber 163 which is in effect an extension of the pipe121, until it is sufficient to overcome the force of the spring 177 ofthe reservoir valve, when that valve will be lifted to relieve thepressure and permit water to flow to the reservoir. The tension of thespring 177 thus determines'the degree of pressure which will beappliedio the sole of the shoe, and it will be noted that this tensionmay be varied by turningthe stem 170 of the threaded disk 172 againstwhich the upper end of the spring bears. At about this time the pistonbegins its downward movement, the pad box valve 161 being 'held open bymechanical means, and the reservoir valve 169 also opened and held openif it has closed, the parts coming to rest in the positions shown inFig. 6. Enough water is maintained at all times in the system so thatthe pad box 25, the pipe 121 and that part of the cylinder above thepiston are always filled with water, the level of the water always beingabove the bottom of the reservoir. Consequently the amount of waterdisplaced by the rise of the piston is relatively small being estimatedat not more than one-sixth of the whole volume of the water, and in somecases not more than one-twelfth.

When the parts come to rest in the positions shown in Fig. 6, the jackvalve 153 is closed and the jack is still looked under pressure in itslowered position. In the illustrative machine this valve is not openedand held open by mechanical means as are the other two although it maybe so opened if desired, one form of such a means being shown in myprior application Serial No. 287,516, but is opened by depressing thehorizontal arm of a bell crank lever 179, the upright arm of which isconnected by a rod 181 to the upright arm of a second bell crank lever185 the hub. 180 of which is loosely mounted on a stud shaft carried 'bythe wall of the cylinder 147. The outer end of the horizontal arm ofthis bell-crank lever is located beneath the stem of the jack valve 153so that this valve is thereby lifted. A coiled spring 187 tends at alltimes to act upon the hub 180 to hold the upright arm of the bell cranklever against a stop pin 188.

Turning now to the mechanism for reciprocating the piston and formechanically open ing the reservoir valve 169 and the pad box valve 161and having reference more particularly to Figs. 1 and 6, there is formedin the rear portion of the frame a casing in which is rotatably mounteda shaft 189 having a crank pin 191 to which a wrist pin in the piston151 is connected by a connecting-rod 193, the crank arms which carry thecrank pin 191 being formed ascams 195, 197. Mounted above the shaft 189is a rod on which. are loosely fulcrumed the hubs of two arms. The arm199 carries a roller 201 which rests upon the surface of the cam 195,the arm when raised being adapted to lift a rod 208 which is connectedto the stem of the reservoir valve 169. The arm 205 carries a roller 207which rests upon the surface of the cam 197, the arm when raised beingadapted to lift a rod 209 which. is connected to the stem ofthe pad boxvalve 161. The cams 195 and 197 are so shaped thatwhen the shaft 189 hasmade one revolution and come to rest, as it does in the position shown.in Fig. 6, the valves 161 and 169 are held open, and when the shaft isrotated the valves are lifted or permitted to close in the I followingmanner.

as the jack valve 153 closes, at which time the pad box valve 161 may beraised slightly by the water pressure, said pad box valve is lifted andthe reservoir valve 169 is per mitted to close. During the further riseof the piston the valves 161, 169 remain in these positions until nearthe end of the upstroke of the piston when, if the pressure in the pipe121 and pad box 25 rises to a sufficient degree the reservoir valve 169may be lifted slightly by the water pressure. At the same time or priorto that time the jack valve 153 may also be lifted by the waterpressure, but whether it is or not is immaterial since the pipe 123 isfull of water under pressure. At this time the laying of the sole iscompleted, the piston is at or almost at the top of its stroke, and thereservoir valve 1.69 is then opened and held open until the piston hasbeen withdrawn to its lowermost position.

In order to impart to the shaft 189 a single revolution when desired,there is loosely mounted on the shaft a worm wheel 211 drivencontinuously by a worm 213 which may be connected with any suitablesource of power such as an electric motor, not shown.

The worm wheel 211 may be connected with the shaft 189 at any time bydepressing a treadle, not shown, which is connected to a treadle rod215, depression of the treadle serving to throw into operation aone-revolution clutch indicated at '217. The clutch mechanism will notbe described further since the details of its construction form no partof the present invention and any suit able one revolution clutch may beemployed. Below the worm wheel 211 is a pan containing oil into whichthe wheel dips.

lVhen the machine is to be used, theoperator, after seeing that theproper plate 37- 1s in place and that such late is in such longitudinalposition that. the proper right or left opening 39 will be above the pad17, takes the proper sole to fit that opening and drops it upon the padwith the toe end of the sole against the toe end of the opening and withone side of the sole bearing against that'side of the opening which isadjacent to the side lugs 41, the heel gage having been set in positionto engage the heel end of the sole.

YVith the sole thus located, the operator takes the proper last 200 withthe upper thereon, and places it upon the sole, using the guide lugs 41as means for accurately positioning the last and its upper relatively tothe sole. In practice it is preferably so to adjust the heel gage thatthe distance between it and the toe end of theopening 39 is slightlyless than the length of the sole so that said sole will buckle upsomewhat in its shank portion. hen the sole is so placed and hydraulicpressure is exerted below the pad21, the shank portion of the sole maybe the pad box valve 161 to be closed by its spring, the reservoir valve169 being still held pen by cam 195. The moment that the shaft begins torotate, it begins to effect a rise of the piston 151 so as to forcewater to any point toward which it is free to flow. Pad box valve 161being first closed and held closed by its relatively heavy spring" 165no water can pass through port 167, but the action of the piston forceswater through port 157 and lifts the jack valve 153 the water passinginto pipe 123 so as to fill the pipe. and to produce and increasepressure therein and in the extensible arm 67, 71 so that said armlengthens in opposition to the pull of spring 75. Owing to the shape ofthe slots 70, the pressure first carries the jack mechanism from thenormal rearwardly swung position, shown in Fig. 1, out to position abovethe shoe and then down. The latter part of this movement presses thelasted shoe to substantially the position shown in Figs. 2 and 10 atwhich point the block 57 prevents further downward movement of the shoe,the arresting of further downward movement of the jack preventingfurther lengthening of the extensible arm. The movement of the pistoncontinues; but, as the arrest of the extensible arm results in stoppingthe'flow of the water past the jack valve 153,the action of its spring159 seats the valve which insures retention of the jack in the positionshown in Figs. 2 and 10. That is, the jack is locked under pressure inthatposition. In the illustrative machine the jack remains locked inlast-holding position until manual operation of the lifter arm 185effects the opening of the valve so that the ensuing reduction ofpressure in "the pipe and the extensible arm will permit the now isforced through the port 167 and pipe 121 to thepad box 25, the pressurerising until it is suflicient to overcome the resistance of the heavyspring 177 so that the pressure always rises-to a predetermined degree.As pressure in the pad box 25 rises to shift the pad 21 from theposition shown in Figs. 2 and 10 to that shown in Fig. 11, the resultantflexing of the pad carries the marginal portions of the sole up aroundthe margin of-the lasted upper with a firm uniform pressure, whichpressure is localized and made efi'ective against the bottom and lowerportions of the sides of the lasted shoe, since the marginal portions ofthe pad can not be moved because of being held down ,by the solelocating plate 37. The amount or degree of this laying pressure may becontrolled byactuating the stem 170 of the member 172 which bears uponthe spring 169'. When flexure of the pad reaches such point that furthermovement is resisted by the lasted shoe, the pad is practicallyconverted into a close fitting mold every portion of which thereafterexerts the same degree of laying pressure as other portions.

The sole laying pressure occurs, as has been described, during theupward movement of the piston. At about the time it begins its downwardstroke, the reservoir valve 169 and the pad box valve 161 are opened bythe cams and thereafter are held open during the whole downward stroke.The piston thus sucks water back through the pipe 121; and since thevalves 169 and 161 are held open the water is free to flow back into thecylinder or into the reservoir. This releases the pressure on thediaphragm so that the parts are again in thepositions shown in Fig. 2.Before the lasted shoe with its sole laid can be removed from themachine, the bell crank 179 is manipulated to open the jack valve- 153;and since all the valves are then open and all the conduits free, thewater in the whole system finds its level.

In prior applications Serial Nos. 184,347 and 287,516 filed in my namevarious features which are shown in the present application, among themthe swinging and downwardly moving jack, the fluid control of the ackand pad, and the platewhich serves both as a locating means for the soleand a means for restricting the flexibility of the diaphragm to a narrowlocality are shown, described and broadly claimed. Consequently nothingin the way of limitation which appears in the appended claims should beconstrued as a dedication to the public.

In the description of the mode of operation of the machine it has beenstated that first the sole is placed upon the diaphragm and then theshoe is placed upon the sole. It should be understood, however, that ifdesired the sole may first be placed upon the bottom of the shoe andthen the shoe with the sole in position upon it placed upon thediaphragm.

Although the invention has been set forth as embodied in a particularmachine it should be understood that the invention is not limited in thescope of its application to the particular machine which has been shownand described.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. A machine of the class described having, in combination, a shoesupport, a flexible presser adapted to contact with the sole of a shoecarried by the support, a self-contained fluid system including a forcefeed member, and means for operating said member to cause first approachof the support and the presser and then flexing of the presser about thebottom of the shoe.

2. A machine of the class described, having in combination, a lastsupport or jack, a presser in the form of a flexible diaphragm, aself-contained liquid system in? cluding a force feed member, and meansfor actuating the force feed member to cause liquid under pressure toactuate both the jack and the presser.

3. A machine of the class described having, in combination, a shoesupport, a flexible presser adapted to contact with the sole of a shoecarried by the support, a selfcontained fluid system including a forcefeed member, and operator-controlled, poweroperated means for operatingsaid member to cause first approach of-the support and the presser andthen flexing of the presser about the bottom of the shoe.

44A machine of the class described, having in combination, a presser foracting upon the sole of a lasted shoe, a jack for holding the shoeagainst the sole, a selfcontained liquid system including a pump, andmeans for actuating the pump to cause liquid pressure to operate boththe jack and the pad.

5. A machine of the class described, having in combination, a presserfor acting upon the sole of a lasted shoe, a jack for holding the shoeagainst the sole, a selfcontained liquid system including a force pump,and operator controlled means for actuating the pump to cause liquidpressure .to operate both the jack and the pad.

6. A machine of the class described, havingin combination, a presser inthe form of a flexible diaphragm for acting upon the sole of a lastedshoe, a jack for holdin the shoe against the sole, a self-containedliquid system including a force pump, and means for actuating the pumpto cause liquid pressure to operate both the jack and the pad.

7 A machine of the class described, having in combination, a jack, apresser, a selfcontained system of receptacles and conduits for liquid,a driving member, means for imparting a predetermined cycle of movementto said member, and means operated by said movement for forcing liquidunder pressure to said ]1Cl and presser.

8. A machine of the class described, having in combination, a jack, apresser in the form of a flexible diaphragm, a self-contained system ofreceptacles and conduits for liquid, a driving member, means forimparting a predetermined cycle of movement to said member, and meansoperated by said movement for forcing liquid under pressure to said jackand presser.

9. A machine of the class described, having in combination, a jack forsupporting a shoe against pressure during the sole laying operation, asole'laying member in the form of a flexible diaphragm, a container forliquid, conduits leading from the container to the jack and the solelaying memher, and a pump for forcing liquid from the container throughthe conduits.

10. A machine of the class described, having in combination, a jack forsupporting a shoe against pressure during the sole lay-- ing operation,a sole laying member in the form of a flexible diaphragm, a containerfor liquid, conduits leading from the container to the jack and the solelaying member, and an operator controlled pump for forcing liquid fromthe container through the conduits.

I 11. A machine of the class described, having in combination, a jackfor supporting a shoe against pressure during the sole laying operation,a sole laying member in the form of a flexible diaphragm, a containerfor liquid, conduits leading from the container to the jack and the solelaying members, valves in the conduits, means for forcing liquid throughthe conduits and means acting upon the valves for controlling thesequence in which they are operated:

12. A machine of the class described, having in combination, a jack forsupporting a shoe against pressure during the sole laying operation, asole laying member in the form of a flexible diaphragm, a container forliquid, conduits leading from the container to the jack and the solelaying member, valves in the conduits, means for forcing liquid throughthe conduits and thereby operating the valves, and springs of differentstrengths acting upon the valves for controlling the sequence in whichthey are operated.

13. A machine of the class described, having in combination, a jack forsupporting a shoe against pressure during the sole laying operation, asole laying member in the form of a flexible diaphragm, a container forliquid, conduits leading from the con tainer to the jack and the solelaying member, valves in the conduits, means for forcing liquid throughthe conduits, and springs of different strengths acting upon the valves1,&95,163

for controlling the sequence in which they are opened.

14. A machine of the class described, having in combination, a jack forsupporting a shoe against pressure during the sole laying operation, asole laying member in the form 'of a flexible diaphragm, a con tainerfor liquid in the form of a cylinder, conduits leading from the cylinderto the jack and thediaphragm, a piston in the cylinder, and means forreciprocating the piston.

15. A machineof the class described, having in combination, a jack forsupporting a shoe against pressure during the sole lay ing operation, asole laying membcnin the form of a flexible diaphragm, a container forliquid in the form of a cylinder, conduits leading from the cylinder tothe jack and the diaphragm, a piston in the cylinder, and means forimparting to the piston movement first in a direction to force liquidfrom the cylinder and then in a direction to draw it into the cylinder.

16. A machine of the class described, having in combination, a jack, apresser, a selfcontained liquid system including a reservoir for theliquid, a cylinder, a conduit leading from the cylinder to the jack, aconduit leading from the cylinder to the presser, a conduit leading fromthe last-named conduit to the reservoir, valves in the conduits, apiston in the cylinder, and means for operating the piston.

17. A machine of the class described, having in combination, a jack, apresser, a self-contained liquid system including a reservoir for theliquid, a cylinder, a conduit leading from the cylinder to the jack, aconduit leading from: the cylinder to the presser, a conduit leadingfrom the lastnamed conduit to the reservoir, valves in the conduits,means acting upon the valves to determine the sequence in which they areoperated, a piston in the cylinder, and means for operating the piston.

18. A machine of the class described, having in combination, a jack, apresser, a selfcontained liquid system including areservoir for theliquid, a cylinder, a conduit 1 leading from the cylinder to the jack, aconduit leading from the cylinder to the presser, a conduit leading fromthe lastnamed conduit to the reservoir, valves in the conduits. springstending at all times to close the valves, the spring of the valve in theconduit leading to thepresser being of less strength than that of thevalve in the conduit leading to the reservoir and of greater strengththan that of the valve leading to the jack.

19. A machine of the class described, having in combination, a jack orsupport for a lasted shoe, a flexible presser, .means for holding a bodyof liquid at all times against from the box.

21. A machine of the class described, having in 'combination, a lastsupport, a box having a flexible section or pad opposite said support,positively operated means for forcing fluid into and withdrawing it fromthe box, and means for automatically determining the length of thecharging and discharging operation.

22. A machine of the class described, having in combination, a lastsupport, a box having a flexible section or pad'opposite said support,positively operated means for forcing fluid into; and withdrawing itfrom the box, and means fornlimiting the pres sure in said boxqto apredetermined degree.

23. A machine'oftheclass described, having in combination, a lastsupport, a box having a flexible'sectioh or pad, opposite said support,positively operated means for forcing fluid into and withdrawing it fromthe box, and adjustable means for determining the degree of maximumpressure exerted attained by the liquid in the box.

24. A machine of the class described, having in combination, a\lastsupport ,-a box having a flexible section or pad opposite said support,a cylinder, an oscillatory piston thereon, and a mobile incompressiblepower transmitter for communicating oscillations of the piston to saidpad.

"25. A machine of the class described, having in combination, a lastsupport, a flexible pad opposite said support and having a liquidbacking, a reservoir for a reserve supply of liquid above the levelofsaid pad. conduit connections for the ,movement of liquid back andforth between said reservoir and pad, and means for effecting movementof liquid first in one direction and then in the other direction throughsaid conduit connections,

v 26. A. machine of the class described, having in combination, a lastsupport or ack,

a exible pad, hydraulic pressure means forflexing the pad in oppositionto a last supported by the jack, means for increasing and diminishingthe pressure for flexing the pad, valve mechanism for-.controlling saidpressure, and a reservoir for liquid, said valve mechanism beingconstructed and arranged to divert liquid from the pad to the reservoir.

27 A machine of the class described, having in combination, a jack, aco-operating presser in the form of a flexible diaphragm,

a receptacle for holding a body of li uid against the presser, acylinder for 1101 'ng liquid, a conduit between the cylinder and thereceptacle, a valve in the conduit, a reservoir for surplus liquid, apassageway from the conduit to the reservoir, a secondvalve in thepassageway, means for operating the valves constructed and arranged tocontrol the sequence of their opening, and means for forcin liquid pastthe valves.

28. machine of the class described, having in combination, a jack, aco-operating presser in the form of a flexible diaphragm, a receptaclefor holding a body of liquid against the presser, a cylinder for holdingliquid, a conduit between the cylinder and the receptacle, a valve inthe conduit, a reservoir for surplus liquid, a passageway from theconduit to the reservoir, a second valve in the passageway, means foroperating the valves constructed and arranged to cause the valve in thepasageway leading to the reservoir to be held closed after the othervalve has been opened, and means for forcing liquid past the valves.

29. A machine of the class described, having in combination, a jack, aco-operating presser in the form of a flexible diaphragm, a receptaclefor holding a body of liquid against the presser, a cylinder for holdingliquid, a conduit between the cylinder and the receptacle, a valve inthe conduit, a reservoir for surplus liquid, located at a level tomaintain liquid at all times in contact with the diaphragm, a passagewayfrom the conduit to the reservoir, a second valve in the passageway,means for operating the valves constructed and arranged to control thesequence of their opening, and means for forcing liquid past the valves.

30. A machine of the class described, having in combination, a jack, aco-operating presser in the form of a flexible diaphragm, a receptaclefor holding a body of liquid against the presser, a reservoir forreserve liquid located above the level of thereceptacle, a cylinder,conduits leading from the cylinder to the receptacle and to thereservoir, valves in the conduits, a piston in the cylinder, means forreciprocating the piston, and means for opening the valves in timedrelation to the movements of each other and to that of the piston.

31. A machine of the .class described, having in combination, a lastsupport or jack and a presser, a sole locating plate slidably mountedadjacent to the presser, and means interposed between said plate andpresser to prevent wear of the latter by the former.

32. A machine of the class described, having in combination, a lastsupport or jack and a pad, mechanism for relatively operating the jackand pad, a plate slidably mounted adjacent to the pad, said plate havingdifferently-shaped sole-locating openings, and a thin plate interposedbetween the pad and plate, said thin plate having an opening located toregister with one of the openings in the slidable plate when the latteris in position to locate a sole in position l and positively operatedmeans for increasing find reducing the quantity of liquid in the 34. Amachine of the class described, having in combination, pressure applyingmeans including a box having a flexible section or pad, means forkeepingthe box completely filled with a liquid to the exclusion of airpositively operated means for increasing and reducing the quantity ofliquid in the box, and means for automatically determining the maximumpressure of liquid in the box.

35. A machine of the class described, having in combination, pressureapplying means including a box having a flexi le section or pad, meansfor keeping the box completely filled with a liquid to the exclusion ofair,

positively operated means for increasing and reducing the quantity ofliquid in the box, and means for automatically determining the durationof said increase and reduction.

36. In a sole laying machine having a last support or jack and apresser, gages for the toe and one side edge of a sole, and a heel gageconstructed and arranged to be adjusted in a direction inclinedrelatively to the median line of a sole.

37. In a sole laying machine having .a last support or jack and apresser, a solelocating plate mounted between the jack and presser, anda heel gage adjustably carried by said plate.

38. In a sole laying machine having a last support or jack and apresser, a solelocating plate mounted between the jack and presser, anda heel gagecarried by said plate and adjustable relativelythereto in adirection inclined relatively to the median line of a sole located bysaid plate.

39. In a sole laying machine having a last support or jack and apresser, a, plate mounted between the jack and presser, said platehaving a sole-gaging opening, and a heel gage adjustably carried by saidplate.

40. In a sole laying machine having a last support or jack and apresser, a plate mounted between the jack and presser, said plate havinga sole-gaging opening, and a heel gage carried by said plate andadjustablerelatively to the -.heel end of said opening in a directioninclined to the longitudinal median line of the opening.

41. In a sole laying machine havinga last support or jack and a presser,a solelocating plate mounted between the jack and presser, and a wipercarried by said plate 1n position to act upon the margin of a sole atthe heel end thereof.

42. In a sole laying machine having a 'last support or jack and apresser, a solelocating plate mounted between the jack and presser, anda combined heel gage and wiper carried by said plate, said heel gage andwiper being adjustable obliquely to the median line of a sole located bysaid plate.

45. A machine of the class described, having in combination, a lastsupport or jack,

a pressure-box including a flexible dia-- phragm, valve-controlledconduits leading respectively to the jack and to the box, means forforcing fluid through the conduits to cause the diaphragm to be pressedagainst the bottom of a shoe supported by the jack and to cause thediaphragm tobe flexed about the bottom of the shoe, automatic means foropening the valve which controls the conduit leading to the pressureboxso as to release the pressure of the fluid on the diaphragm, andoperator-controlled means for opening the valve which controls theconduit leading to the jack so as to release the pressure of the fluidonthe jack.

46. A machine of the class described, having in combination, a lastsupport or jack, a presser, a self-contained fluid system includin aforce feed member, and meansfor actuating the force feed member to causefluid under pressure to actuate both the jack and the presser.

47. A machine of the class described, having in combination, a lastsupport or jack a presser in the form of a flexible diaphragm, aself-controlled fluid system ineluding a force feed member, and meansfor actuating the force feed member to cause fluid under pressure toactuate both the jack and the presser.

48. A machine of the class described, having in combination, a presserfor acting upon the sole of a-lasted shoe, a jack for holding the shoeagainst the sole, a selfcontained fluid system including a pump,

and means for actuating the pump to cause fluid pressure to operateboth. the jack and the pad.

49. A machine of the class described, having in combination, a jack, apresser, a selfcontained system of receptacles and conduits for fluid, adriving member, means for imparting a predetermined cycle of movement tosaid member, and means operated by said movement for forcing fluid underpressure to said jack and presser.

50. A machine of the class described, having in combination, a jack forsupporting a 10 shoe against pressure during the sole laying operation,a sole laying member in the form of a flexible diaphragm, a containerfor fluid, conduits leading from the container to the jack and the solelaying member, and a pump for forcing fluid from the container throughthe conduits.'

In testimony whereof I have signed my name to this specification.

LOUIS A. CASGRAIN.

